Window Replacement Melbourne — Complete 2026 Guide
If your Melbourne home still has single glazed or ageing aluminium windows, you are losing money every day through energy waste, dealing with condensation and mould, and living with more noise than you need to. This guide covers everything you need to know about window replacement in Melbourne — from knowing when it is time, to choosing the right material, to finding a company that will not let you down.
7 Signs It Is Time to Replace Your Windows
Windows do not last forever. In Melbourne's variable climate — hot dry summers, cold wet winters, and salt air in bayside suburbs — window performance degrades over time. Here are the seven warning signs that tell you replacement is overdue.
1. Condensation Between Panes
Fog or water droplets inside double glazing means the seal has failed. The insulating gas has escaped and the window is now performing like single glazing. This cannot be repaired — replacement is the only solution.
2. Draughts Around Frames
If you feel cold air entering around window frames, the seals have degraded or the frame has warped. In winter, this forces your heating system to work harder. In summer, cooled air escapes. Both cost you money.
3. Noise From Outside Getting Louder
If traffic, trains, or neighbours seem louder than they used to, your window seals have deteriorated. Modern uPVC double glazing reduces noise by up to 80% — a difference you will notice immediately.
4. Difficulty Opening or Closing
Windows that stick, jam, or require force to operate have warped frames, failed hardware, or swollen timber. This is a safety issue as well as a comfort issue — windows should open smoothly for ventilation and emergency egress.
5. Visible Frame Damage, Warping or Rot
Timber frames with rot, aluminium frames with corrosion (common in Brighton and St Kilda), or uPVC frames with cracking and discolouration are beyond repair. Once structural integrity is compromised, replacement is the only safe option.
6. Energy Bills Increasing Without Explanation
If your heating and cooling costs have risen despite no change in usage, your windows are the likely culprit. Old windows can account for 30-40% of a home's energy loss. Replacing them typically cuts energy bills by 40-60%.
7. Windows More Than 20 Years Old
Even well-maintained windows reach end of life at 20-25 years. Seal technology, glass coatings, and frame materials have improved dramatically since the early 2000s. Modern uPVC double glazing outperforms even 15-year-old double glazing by a significant margin.
How Much Does Window Replacement Cost in Melbourne?
The cost of window replacement in Melbourne depends on the number of windows, the material chosen, glazing type, and installation complexity. Here is what Finesse Windows customers actually pay in 2026.
2026 Melbourne Window Replacement Costs
Per Window (uPVC Double Glazed)
$800 – $2,500
Supply + install + removal
Per Window (Triple Glazed)
$1,500 – $3,500
Passive House certified
Full Home (15-20 windows)
$18,000 – $45,000
Complete replacement
These prices include removal and disposal of your old windows, supply of new uPVC double glazed units, professional installation, sealing, cleanup, and our 10-year warranty. There are no hidden extras. For an exact quote tailored to your home, call 03 9598 2356 or request a free consultation online.
The Best Window Material for Melbourne Homes
When replacing windows in Melbourne, you have three material options: timber, aluminium, and uPVC. Here is how they compare for Melbourne's specific climate challenges.
Timber
- ✓Natural aesthetic
- ✗Requires repainting every 5-7 years
- ✗Prone to rot in Melbourne humidity
- ✗Warps and cracks over time
- ✗High lifetime maintenance cost
Aluminium
- ✓Strong and lightweight
- ✓Lower upfront cost
- ✗Conducts heat — poor insulation
- ✗Causes condensation and mould
- ✗Corrodes in coastal air
uPVC (Recommended)
- ✓2-5x more energy efficient
- ✓Zero condensation
- ✓Zero maintenance for 25 years
- ✓Does not corrode or warp
- ✓Best long-term value
For Melbourne homes, uPVC is the clear winner. It handles our temperature extremes without degradation, eliminates the condensation problems that plague aluminium, and requires no maintenance unlike timber. Finesse Windows' uPVC profiles are UV-stabilised specifically for Australian conditions and backed by a 10-year warranty.
Double Glazing vs Single Glazing Replacement
If you are replacing single glazed windows, the performance jump to double glazing is dramatic. If you are replacing old double glazing, upgrading to modern high-performance units is still worthwhile.
| Metric | Single Glazing | Modern Double Glazing | Improvement |
|---|---|---|---|
| U-Value | 5.0 – 6.0 W/m²K | 0.9 – 1.4 W/m²K | 4-6x better |
| Energy Savings | Baseline | 40-60% reduction | $800-1,500/year |
| Noise Reduction | Minimal | 70-80% reduction | Dramatic |
| Condensation | Constant in winter | Eliminated | No more mould |
| Security | Basic | Multi-point locking | RC2/RC3 rated |
The difference is not incremental — it is transformational. Homeowners who replace single glazing with Finesse uPVC double glazing consistently describe it as the best home improvement they have made. The comfort improvement is immediate, the energy savings are ongoing, and the noise reduction changes how you experience your home.
The Window Replacement Process — Step by Step
Understanding the process helps set expectations and ensures you know what to ask at each stage. Here is exactly how Finesse Windows handles every replacement project.
Free Consultation and Quote
We visit your home, assess every window, discuss your priorities (energy, noise, aesthetics), and provide a detailed written quote within 24 hours. No obligation. No pressure.
Precision Measurement
Every opening is measured with laser precision. We check for squareness, level, and structural integrity. For heritage properties, we document existing details for council approval.
Custom Manufacturing
Your windows are manufactured to exact specifications using European uPVC profiles, argon-filled double or triple glazing, and Siegenia hardware. This takes 8-10 weeks.
Professional Installation
Our in-house team removes old windows, installs new units, applies multi-layer airtightness seals, and tests every window for operation and seal integrity. Most homes take 1-3 days.
Post-Installation Audit
4 weeks after installation, we return to conduct a performance audit. We check for air leaks with smoke testing, verify hardware function, and ensure you are completely satisfied.
10-Year Warranty Activation
Your warranty is registered and documentation provided. You are covered for profiles, hardware, glazing, and installation quality for 10 years — backed by our Australian business.
How to Choose the Right Window Company in Melbourne
Not all window companies are equal. The difference between a good and bad replacement experience often comes down to who you choose. Here is what to look for.
What to Look For
- ✓In-house installation team — not subcontractors
- ✓Google reviews — 4.8+ stars with 100+ reviews
- ✓Post-installation audit — verifies performance
- ✓Long warranty — 20+ years on all components
- ✓Local showroom — see and test products in person
- ✓Heritage experience — for older Melbourne homes
Red Flags to Avoid
- ✗Subcontractor installers — no quality control
- ✗No physical address — here today, gone tomorrow
- ✗Pressure tactics — "today only" pricing
- ✗Vague warranty — excludes the parts that fail
- ✗No post-install support — disappears after payment
- ✗Cash-only deals — no paper trail, no recourse
Questions to Ask Before You Sign Anything
Before committing to any window replacement company, ask these questions. The answers will tell you everything you need to know about what to expect.
1. Do you use subcontractors for installation?
If the answer is yes, be cautious. Subcontractors are paid per window and have no long-term relationship with the company. Finesse Windows uses only in-house installers who are Finesse-certified and accountable for every project.
2. What does your warranty actually cover?
Many warranties only cover the frame and exclude hardware, glazing, seals, and installation. Finesse Windows' 10-year warranty covers profiles, hardware, glazing, and installation quality — everything.
3. How do you verify performance after installation?
Most companies leave after the last window is in. Finesse Windows returns 4 weeks later for a post-installation audit including smoke testing for air leaks and thermal imaging to verify performance.
4. Can I see your work in person?
Ask for local references you can visit. Finesse Windows has completed 500+ installations across Melbourne and can arrange viewings in your suburb. We also welcome visits to our showroom at 91 Somerset Rd, Campbellfield.
5. What happens if something goes wrong?
Ask about their complaint resolution process. Finesse Windows guarantees a response within 24 hours for any issue and a site visit within 48 hours if required. We also offer $200 off your invoice if we miss the agreed installation date.
Why Finesse Windows for Your Melbourne Replacement
We are not the cheapest window company in Melbourne. We are the one that does it properly. Here is what sets Finesse Windows apart for window replacement projects.
In-House Installation Team
No subcontractors. Every installer is Finesse-certified.
10-Year Comprehensive Warranty
Profiles, hardware, glazing, and installation.
Post-Installation Performance Audit
Smoke testing and thermal imaging 4 weeks after install.
0.9 U-Value Passive House Certified
The highest performance standard available in Australia.
Local Melbourne Business
Showroom at 91 Somerset Rd, Campbellfield. Call 03 9598 2356.
500+ Melbourne Installations
From Toorak to Fitzroy, Brighton to Glen Waverley.
We also specialise in heritage window replacement for Melbourne's period homes. Our team understands council requirements for heritage overlays in Kew, Hawthorn, Fitzroy, and other heritage-protected suburbs. We manufacture windows that meet modern performance standards while preserving the character that makes your home unique.
Frequently Asked Questions
Window replacement in Melbourne costs $800-$2,500 per window for uPVC double glazed units. Triple glazed Passive House windows range from $1,500-$3,500 per window. A full home replacement of 15-20 windows typically costs $18,000-$45,000 including installation, removal of old windows, and 10-year warranty.
The window replacement process takes 10-12 weeks from quote to completion. This includes 1 week for consultation and measurement, 8-10 weeks for custom manufacturing, and 1-3 days for professional installation. Finesse Windows provides a post-installation performance audit 4 weeks after installation.
Most window replacements in Melbourne do not require council approval if you are replacing like-for-like windows in the same opening. However, heritage-listed properties in suburbs like Kew, Hawthorn, and Fitzroy may require council approval for any changes. Finesse Windows handles all heritage documentation and council liaison as part of our service.
uPVC is the best window material for Melbourne homes. It is 2-5x more energy efficient than aluminium, eliminates condensation completely, requires zero maintenance, and does not conduct heat or cold. Unlike timber, uPVC will not rot, warp, or require repainting. Finesse uPVC windows are specifically engineered for Australian UV intensity and temperature extremes.
Yes, window replacement can be done year-round in Melbourne. Finesse Windows uses a room-by-room installation approach that minimises exposure to cold air. Each window is removed and replaced within 30-60 minutes, and temporary weather protection is used during installation. Many homeowners prefer winter installation to be ready for the heating season.
Get Your Free Replacement Quote
Ready to replace your windows? Our team provides a free on-site consultation, precise measurements, and a detailed written quote within 24 hours. No obligation. No pressure.
Response within 24 hours. Priority booking available for May 2026 installation slots.
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